The Cortex 75kg Black Series V3 Bumper Plate Set with ATHENA100 Barbell is designed to keep up with serious functional fitness use, Cross Fit training and Olympic lifting. The black series bumper plates are engineered to the highest quality with a scratch-resistant rubber surface, grooved edges and a steel core for seamless loading. Whether you are starting your weightlifting journey or looking to add weight to your equipment, this package including 10kg, 15kg and 20kg weight plates along with our Cortex Strength ATHENA100 15kg 200cm Olympic Barbell and Cortex Olympic Lock Jaw Collars is sure to boost your strength sessions.